CCU-I-TGL is a new main control board developed for VoIP applications. It features Intel Quad Core processors that can easily handle up 1800 concurrent calls using the G.711 codec, or up to 1000 concurrent calls with the G.729 codec (measured under laboratory conditions). To ensure clear, high-fidelity, and high-definition audio/video calls, CCU-I-TGL is equipped to integrate with various HD voice and video codecs.
CCU-I-TGL supports comprehensive protocol processing, inculding SIP and IAX2 protocols on the IP side, and BRI, PRI, SS7, R2, GSM, and WCDMA on the CPE side. Leveraging the full advantages of open-source platforms, the CCU-I-TGL comes preloaded with OpenVox UC PBX System, PBX in a FlashTM, and FreePBX IPPBX software.
Main Feature
•Users: Unlimited (recommended within 4000 users)
•Concurrent Calls: Unlimited (recommended within 800 concurrent calls)
•Transport Protocol: UDP, TCP, TLS, SRTP
•DTMF: In-band, RFC2833, SIP INFO
•IP Services: Static IP, DHCP, VPN, Firewall, PPPoE, Bridge
•Supported codecs: ADPCM, G.711 (A-Law & u-Law), G.722, G.723.1 (pass through), G.726, G.728, G.729, GSM, iLBC (optional) and others.
•SIP and IAX2 support
•Web-based operator panel
•DISA (Direct Inward System Access)
•Call detail record (CDR) report
•Call recording, call parking, call queues, Voicemail, Conference
•Echo canceller
•Callback support
•Flexible and configuration IVR
•Support for PIN sets
•Support for time conditions
•Support extension following
•Support for ring groups
•Support for video-phones
•Channel usage reports
Panel Appearance
The appearance of the CCU-I-TGL panel is shown in Figure 1.
Figure 1 CCU-I-TGL Panel Appearance
Note: The ETH1/ETH2/ETH3 network port of CCU is a Gigabit network port.
Performance Test
1.Testing Platform
CPU |
Main Frequency |
Memory |
Storage |
Operating System |
Asterisk Version |
i5-1135 Quad-Core and eight threads |
2.40GHz |
32G |
MSATA 32G |
Centos7.9 64-bit |
16.23.0 |
Related notes:
1. Equipment with: i5-1135 motherboard through sip relay docking test machine
2. Test data: test different codes, the maximum number of concurrent sip calls in the case of normal voice
3. Call rate: 1min per call round, 10s internal call delay, maximum number of initiated and stopped calls per second set to 30
4. Asteirsk using source code compilation, g723、g729 coding module using core2-sse4 64-bit so file
5. The performance screenshot is the output of WinSIP call hitting full moment using top command.
Calling process:
sip relay
Winsip --> Server A ( i5-1135) ----------------->Server B(playback demo-instruct)
2.Test Method
Prepare a test server B with Asterisk, WinSIP initiates a call to A (i5-1135) motherboard, which is relayed to Server B for playback via SIP trunk, and make the CPU in full speed working state before each test.
Set/sys/module/pcie_aspm/parameters/policy to performance, and use cpupower -call frequency-set -g performance to make the CPU in full speed working mode.
CPU operating frequency:
cpupower -call frequency-info |grep "current CPU frequency"
3.Test results
Coding |
Number of concurrent |
Sound Quality |
Performance(Cpu Idle) |
Memory Usage(Mb) |
ulaw |
3200 |
Clear voice with no noticeable lag |
7.2% |
7549 |
g723 |
1300 |
Clear voice with no noticeable lag |
0.5% |
3533 |
g729 |
1250 |
Clear voice with no noticeable lag |
0.2% |
3552 |
4.Notes
1. In the test, the number of concurrent calls is gradually increased until the voice stutters after the call is full to determine the critical number of concurrent calls.
2. In the test to monitor the human ear to judge the sound quality, there are subjective differences, call the full softphone and then call all the way to listen to the voice, the voice is clear and no lagging phenomenon as the standard;.
3. Test process BIOS inside the power limit option has been removed, the test cpu in full speed work state.
Parent topic: Core Control Unit